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Finding the Third Proportional to 4,130 and 6,318

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Solution

The third proportional to 4,130 and 6,318 is: 9,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130 : 6,318 = 6,318 : x
  2. Step 2: Convert to fraction form
    4,130/6,318 = 6,318/x
  3. Step 3: Cross multiply
    4,130x = 6,318 × 6,318
  4. Step 4: Simplify right side
    4,130x = 39,917,124
  5. Step 5: Solve for x
    x = 39,917,124/4,130
  6. Step 6: Final answer
    x = 9,665.16

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.